Caster cover



FIG. 1 is a top right front perspective view of a caster cover showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a left side elevational view thereof.

The broken line showing of a pole and a partial wheel is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a caster cover, as shown and described. 